java - Eclipse 中的枚举 nosuchmethoderror

Question

我一直在做 TheNewBoston Java 教程，但陷入了 Enums 的困境，我无法绕过它。每次我尝试编译时，都会收到此错误 Thread [main](Suspended (exception NoSuchMethodError) pointing to line 5 in my Tuna Class. Here is my Tuna class and Apples class.

public enum Tuna 
{

bucky("nice", "22"),
kelsey("cutie", "10"),
julia("mistake", "12");


private final String desc;
private final String year;

Tuna(String description, String birthday)
{
    desc = description;
    year = birthday;        
}
public String getDesc()
{
    return desc;
}
public String getYear()
{
    return year;
}

}

public class Apples 
{
public static void main(String[] args)
{
    for(Tuna people: Tuna.values())
               System.out.printf("%s\t%s\t%s\n", people, people.getDesc(), people.getYear());
}
}

我不知道我做错了什么。如果有的话，我正在使用 Ubuntu 13.10。

Answer 1

首先，您应该粘贴整个错误。除此之外，我认为下面的行最后需要分号

改变这个

 julia("mistake", "12"),

至

 julia("mistake", "12");

你的类可能应该是这样的

public class Apples {
    public enum Tuna {
       bucky("nice", "22"),
       kelsey("cutie", "10"),
       julia("mistake", "12");

       private final String desc;
       private final String year;

       Tuna(String description, String birthday) {
          desc = description;
          year = birthday;        
       }

       public String getDesc() {
          return desc;
       }

       public String getYear() {
          return year;
       }

   }

   public static void main(String[] args) {
     for(Tuna people: Tuna.values())
           System.out.printf("%s\t%s\t%s\n", people, people.getDesc(), people.getYear());
   }
}